Carbon-remover



C. B. OLSON.

CARBON REMOVEB. APPLICATION mzo FEB. 11,1916.

Patented Apr. 12, 1921.

HTED TATES PATENT OFFICE.

CYRUS BYRON OLSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE OXYGENERATORCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CARBON-REMOVER.

Specification of Letters Patent.

Patented Apr. 12, 1921.

Application filed. February 11, 1916. Serial No. 77,663.

To all whom it may concern:

Be it known that I, CYRUs B. OLSON, a citizen of the United States,residing at Chicago, in the county ,of Cook and State of Illinois, haveinvented new and useful Improvements in Carbon-Removers, of which thefollowing is a specification. 1

This invention relates to devices for loosening and removing carbon in'internal combustion engines and especially in internal combustionengines of automobiles and motor vehicles, and it has particularreferenceto devices for bringing about the removal of the carbon by theinjection of steam which may if desired be charged with chemicals ofvarious kinds.

The invention has for its object to produce an improved device of theclass described which will be simple in construction. effective inoperation, and which will include a supply tank for the water or liquidthat is to be vaporized and injected, thereby avoiding the drawing ofwater from the cooling system, as is now sometimes practised and thedisturbance which is apt to result therefrom.

A further object of the invention is to produce a device of the classdescribed which will be simple in construction, effective in operationand capable of being readily installed for use in connection withengines of ordinary construction.

\Vith these and other ends in view which will readily appear as thenature of the" invention is better understood, the same consists in theimproved construction and novel arrangement and combination of partswhich will'be hereinafter fully described and particularly pointed outin the claims.

In the accompanying drawing has been illustrated a simple and preferredform of the invention, it being, however, understood that no limitationis necessarily made to the precise structural details therein exhibited,but that changes, alterations and modifications within the scope of theclaims may be resorted to when desired.

In the drawing,--

Figure 1 is a perspective view showing the improved device applied to aninternal combustion motor of conventional construction.

Fig. 2 is a vertical transverse sectional view of the tank or containerand the valve structures associated therewith.

ening and removal of carbon.

Corresponding parts in the several figures are denoted by likecharacters of reference.

The tank or container 15 is adapted to be seated or mounted on or formedintegrally with the exhaust manifold 16 of the engine which isconventionally indicated at 17. The tank 15 has .at its lower end adrain cock 18, and the top of the tank is provided with a fillingopening having a screw cap 19, with a safety valve 20 and with an airintake valve 21. The safety Valve which opens outwardly is normallymaintained in a seated condition by a spring 22 which at a predeterminedpressure will permit the valve to open. The air intake valve 21 isnormally maintained in a seated position by aspnng 23 which underpredetermined conditions will permit the valve to open for the admissionof atmospheric air. A steam pipe 25 1s connected at one end with thetank 15 near the upper end of said tank. 3 Said pipe is provided with apet cock 26, and a check valve 26 and a portion of the pipe 1s coiledabout the exhaust manifold 16, as indicated at 27, but the other end ofsaid pipe is connected with the intake manifold 28, the steam pipe beingpreferably provided with two branches 29 that are connected with theintake.

In practice, the tank 15 may be filled with water to which any desiredchemicals may be added. \Vhen the engine is running the water will bemaintained in a heated, usually in a boiling condition, the safety valve20 serving to relieve any excess of pressure above a predeterminedlimit. By opening the pet cock 26 the steam will be permitted to pass tothe intake manifold, but the steam before being injected into the enginewill be further heated by its passage through the coils 27 which arewrapped about the exhaust manifold. 'hen the steam is taken into theengine on the suction stroke of the piston, the pressure in the tank 15will be perceptibly reduced, and atmospheric air will be admittedthrough the intake valve 21 which may be adjusted as delicately as maybe found desirable or necessary, it being desirable to provide meanssuch as an adjusting screw 30, whereby the tension of the spring 23 ma)be varied. The'mixture of air and steam thus produced has been foundextremely efficient to bring about the loos- The air in take valve inconnection with the safety valve is also efiicient to prevent splittingof or injury to the steam pipe when -the petcock is closed either byexcess of pressure within the tank or by reason of the existence of apartial vacuum within the tank. The device hereinabove described isadapted to act not only as a carbon remover but as a gas saver andeconomizer and also as a carbon preventive. In other words, when thecontainer 15 is supplied with water or charged with suitable chemicalsin solution, the device acts as a carbon preventive, the carbon beingprevented from adhering to the surfaces of the combustion chamber,valves, valve seats and the like, and being carried out by the exhaust.Secondly, even though there is no solution or liquid in the container,the air intake valve thereof continues to. work for the rea son that thespring tension on said valve is overcome when the engine is running at aspeed which demands a greater supply of air, said intake valve remainingclosed at low speed so as to enable the carbureter to deliver a richmixture to the engine. \Vhen a greater demand for air occurs, the saidintake valve of the container is opened automatically and any airpassing through the container and through the coils is heated highlybefore entering the manifold; therefore it materially raises thetemperature of the carbureted air passing through the intake manifoldand breaks up a great or proportion of the heavier particles of themixture thereby making a more thoroughly combustible or explosivemixture.

It has been found that with this device attached to or used inconjunction with an intake manifold, the carbureter needs a different orfiner adjustment, less fuel and more air being required for thecarbureter. In placing this device on engines in which there is alreadya considerable accumulation of carbon, it is important first to burn outthe carbon, in which case the device may be used on a principle similarto that employed in the present day oxygen torch, by placing a.combination of chemicals rich in oxygen in the container, which isheated by the exhaust manifold or in any other way, and extending a pipeor tube from said container into the spark plug hole of one cylinder ata time, after removing the spark plug and while the engine is operating.In such case the engine is first run a sufficient length of time tohighly heat the manifold and therefore the mixture in the container 15.If desired, instead of running the engine to obtain the heat, a burneror heater of any suitable description may be placed under the container15.

Having thus described the invention, what is claimed as new, is I 1. Thecombination with an internal combustion engine, of a supply tank seatedon the exhaust manifold, said tank having a filling opening and a captherefor, a safety valve and an air intake valve; and a pipe connectingthe top of the tank with the intake manifold, a portion of said pipebeing coiled about the exhaust manifold.

2. The combination with an internal combustion engine, of. a supply tankseated on

